q band epr spectrometer

Q-Band Pulse EPR Spectrometer | EPR-Q400

Compared with conventional X-band electron paramagnetic resonance (EPR), high-frequency EPR offers significant advantages and provides important capabilities across biological, chemical, and materials research.

 

CIQTEK EPR-Q400 is a Q-band high-frequency pulse EPR spectrometer equipped with both continuous-wave (CW) and pulse EPR measurement modes (for CW-only experiments, the EPR-Q300 CW spectrometer is available). It supports variable-temperature experiments from 4 to 300 K.

The EPR software platform is the same as the other CIQTEK X-band pulse spectrometers, making it simple and user-friendly.

  • > Microwave Bridge
    •  Compatible with both CW and pulse operation
    •  Microwave frequency range: 33.7–34.4 GHz
    •  Maximum output power: 100 mW
    •  Microwave power attenuation range: 0–50 dB
  • > RF Amplifier (Optional)
    Two configurations available:
    •  150 W output power, frequency range 0.1–100 MHz
    •  175 W output power, frequency range 0.1–400 MHz
  • > Solid-State Power Amplifier (SSPA)
    •  Operating frequency: 33.5–34.5 GHz
    •  Output power: 200 W

 

  • > Pulse Control and Detection System
    •  Pulse generator time resolution: 50 ps
    •  Microwave pulse channels: Four equal-amplitude channels with 90° phase increments (+X, +Y, –X, –Y), supporting full phase cycling
    •  Maximum number of pulses: 20,000 per channel, with unlimited loop playback
    •  Detection time resolution: 1 ns
    •  Pulsed-mode receiver bandwidth: selectable 20 MHz or 200 MHz
  • > RF Source (Optional)
    Frequency range: 0.1–1000 MHz
  • EPR Applications in Chemistry
    EPR in Chemistry
    Explore reaction mechanisms in organic, electrochemical, and coordination chemistry, monitor free radical intermediates, and support drug discovery, and structural analysis of coordination compounds, and organic syntheses.
  • EPR in Life Sciences
    EPR in Life Sciences
    Advanced oxidation processes, photocatalysis, air pollution monitoring, wastewater treatment, soil remediation, heavy metal pollution tracking, environmental persistent free radicals (EPFR), etc.
  • EPR in Materials Science
    EPR in Materials Science
    Crystal defects, magnetic materials, semiconductors, battery materials, optical fiber defects, polymer materials, etc.
  • EPR in Food Science
    EPR in Food Science
    Food irradiation detection and identification, beer flavor shelf life, edible oil rancidity detection, etc.
  • Applications of EPR in Biomedicine
    EPR in Biomedicine
    Characterization of antioxidant activity, characterization of metalloenzymes, spin labeling of biomacromolecules, etc.
  • Application of EPR in medical research
    EPR in Medical Research
    Occupational disease protection research, nuclear radiation emergency medical treatment, alanine dosimetry, cancer radiotherapy irradiation research, etc.
  • Applications of EPR in Industry
    EPR in Industry
    Coating aging research, diamond defect identification, tobacco filter efficiency, petrochemical quality control, residual inhibitor detection, cosmetic free radical protection factor, etc.
  • EPR in Geoarchaeology
    EPR in Geoarchaeology
    Quaternary dating (ranging from thousands to millions of years) is achieved through EPR analysis of fossils, rocks, corals, quartz, and soils.
  • EPR in Biological Structure Analysis
    EPR in Biological Structure Analysis
    Double electron-electron resonance (DEER) is a vital tool for determining biomolecular structures. It measures electron-electron interaction strength and provides information on the distance between the labeled sites, thus allowing for the resolution of biological structures. The technique can be used to measure distances between 1.7 and 8 nm and is a non-destructive structure analysis tool.

 

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